Pig from Smartest Animals in The World

Pigs have been proven to be highly intelligent animals, even more intelligent than dogs. Their intelligence is compared to the intelligence of a three-year old child. Scientists of Pennsylvania University tried to teach pigs to play certain computer games which could show their ability to solve problems. It was concluded that pigs mastered fundamental aspects of the games as fast as chimpanzees. Their memory lasts for three years, their extremely sensitive sense of smell made them one of the best truffle finders, their ability to adjust themselves to number of conditions ensured their survival through centuries, and the fact that they can be easily trained made them one of the most beloved pets.